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https://issues.apache.org/jira/browse/EXTVAL-159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14008662#comment-14008662
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Martin Steinbauer commented on EXTVAL-159:
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After some trys, it appears, that the problem just exists with the Primefaces
"selectOne..."-components (specifically SelectOneMenu, SelectOneListbox,
SelectOneRadio), if a null-value-item is selected. After the
"PROCESS_VALIDATIONS"-Phase, there are 2 FacesMessages for these components
present.
Other input-components of Primefaces are validated correctly.
The problem also exists with different versions of Primefaces (3.5.13, 4.0,
5.0).
> Duplicate NotNull Validation of Primefaces-SelectOneMenu
> --------------------------------------------------------
>
> Key: EXTVAL-159
> URL: https://issues.apache.org/jira/browse/EXTVAL-159
> Project: MyFaces Extensions Validator
> Issue Type: Bug
> Components: Bean Validation
> Affects Versions: 2.0.7
> Environment: Java 7, JBoss AS 7.1.3, Primefaces 4.0
> Reporter: Martin Steinbauer
> Assignee: Gerhard Petracek
>
> The bean validation displays the error-message twice, if it validates a
> Primefaces-SelectOneMenu and a @NotNull annotation is present on the
> property.
> {code}
> @NotNull
> private String selectedItemP;
> @NotNull
> private String selectedItemH;
> {code}
> {code}
> <h:outputLabel for="pf" value="SelectMenue PF" />
> <p:selectOneMenu id="pf" value="#{validationBean.selectedItemP}">
> <f:selectItem itemLabel=" no selection " noSelectionOption="true" />
> <f:selectItems value="#{validationBean.items}" />
> </p:selectOneMenu>
> <h:outputLabel for="jsf" value="SelectMenue JSF" />
> <h:selectOneMenu id="jsf" value="#{validationBean.selectedItemH}">
> <f:selectItem itemLabel=" no selection " noSelectionOption="true"/>
> <f:selectItems value="#{validationBean.items}" />
> </h:selectOneMenu>
> {code}
> This behaviour does not occur using the JSF-SelectOneMenu and also if the
> PF-Menu is replaced with a PF-InputText.
> In those cases the validation displays only one error message.
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